# class aa:
# 	_sharedb = None 

# 	def __init__(self):
# 		self._sharedb = 3

# 	@classmethod
# 	def start(cls):
# 		cls._sharedb  = 1 

# 	@classmethod
# 	def get(cls):
# 		print (cls._sharedb)

# # aa.start()
# aa()
# aa.get()




